Christoper Williams
ISS🇺🇸American

Humans currently in space
10579
Combined crew-days in orbit
9,332
Days ISS continuously inhabited
15.5
ISS orbits per day
666,960
km ISS travels per day
Two crewed outposts orbit Earth right now

Multi-national laboratory since November 2000
7
crew aboard
408 km
altitude
51.6°
inclination

China's permanent orbital outpost
3
crew aboard
~390 km
altitude
41.5°
inclination
10 people from 5 nations · 579 combined days aloft
May 22, 2026, 6:19 PM UTC
CNSA
🇨🇳China
PLA Air Force pilot and second-batch taikonaut who first flew on Shenzhou-15. Returned to the Tiangong space station as part of the Shenzhou-20 crew.
View profile
CNSA
🇨🇳China
PLA Air Force pilot and member of China's third taikonaut selection. Made his first spaceflight aboard Shenzhou-20 to the Tiangong space station.
View profileCNSA
🇨🇳China
Chinese taikonaut who flew his first mission aboard Shenzhou-20 to the Tiangong space station, conducting science experiments and station maintenance.
View profileRoscosmos
🇷🇺Russia
Roscosmos cosmonaut and aerospace engineer who flew his first long-duration mission as flight engineer on Expedition 63/64. Returned for an extended stay on the ISS.
View profileRoscosmos
🇷🇺Russia
Russian cosmonaut who launched aboard Soyuz MS-27 for his first spaceflight. Currently serving as flight engineer on Expedition 73.
View profile🇺🇸American
NASA
🇺🇸United States
Marine biologist with a PhD in comparative physiology. Made history with Christina Koch on the first all-female spacewalk in October 2019.
View profileNASA
🇺🇸United States
U.S. Navy fighter pilot and test pilot selected in NASA's 2021 astronaut class. Veteran of multiple combat deployments before earning his astronaut wings on his first ISS mission.
View profileESA
🇫🇷France
Aerospace engineer and helicopter test pilot, selected in ESA's 2022 astronaut class. First French woman in space since Claudie Haigneré.
View profileRoscosmos
🇷🇺Russia
Former Russian Air Force pilot who flew on SpaceX Crew-6 as a mission specialist. Returned to the ISS for a long-duration stay on Expedition 73.
View profileLast updated: May 22, 2026, 6:19 PM UTC
Tonight's Sky
The ISS is the third-brightest object in the night sky and visible from your backyard with the naked eye — no telescope needed.
Crew counts and biographies are sourced from the Open Notify API and the ISS People in Space API, refreshed hourly. Days in orbit are calculated from each astronaut's most recent launch date.
“In space” means above the Kármán line (100 km altitude) aboard a crewed spacecraft or station. All active ISS and Tiangong crew are included.
The ISS has been continuously inhabited since November 2, 2000 — a record of 9,332 days of uninterrupted human presence in space.